Damper.



' l whom 'it may concern: ,n

. v Be it known that I, HErMAN RosENBERG,

HE'MAN ROSENBERG, OF NEW YORK, -N. Y.

DAMZPER..

Sipccication of Letters Iatent.

.Application nea'augu so, i911. serialy No. 646,894.

a citizen 1" ,the United States of America',

f.; ,residing-at N ew'York city, .Bronx borough, "'5 countyvand-Stat'e of New York, have in- ,vented certain'-iiew and i1 ments in Dampers, of which the followingk seful Improveis .a full, clear, and exact description. l

This invention relates to an improvement io'iin dampers, but more particularly o a han- 'dlefand rametherefor adapted t operate ,tlie damper; the objectof my invention beto provide a handle fordampers which i can be applied thereto and caused tostay in 15 position on the spindle ofthedam er with- V,out resorting to ins, nuts or the li e.

A; 'further` ob]ect of any invention is "to provide a-frame orbracket which is adapted to pivot-ally support the damper-handle '26 without resortingto pivote-pins or the like.

vMy .invention comprises further features 'of improvement in the'constructionof` the damper-handle and frame therefor, and in `tlie manner of assembling same= which will be hereinafter more fully described.

- One of the main features of my im roved device is that it can be applied equal y well toa square or circular uct or to ductsof 'anywell-known construction. I will now proceed -to describe my invention in detail, the novel features of which I will point out in the appended -claims, refcreme being had to the accompanying drawing, forming part hereof, wherein-- i3`igure 1 illustrates a side view of a per-- fion of a duct having my-jimproved device applied thereto: Fig/2 is a sectional end View et a duct aving my improved device a plied thereto; Fig. 3 is an enlarged detail e p an View of the upper end ofihy improved from@ and also of the upper end of the handte sumorted thereby" and Fig. 4' is a s L L i detail sectional view, ,the section being taken on a line 4-4 in Fin'. 3.

.if Referring to theacmmipanying drawing,

:"ie numeral 1 indicates my improved frame, which consists of segmental or curved .ic-wei; end 2, provided with a slot 2, an :iii-ier end 3 'having ears 4, and a bar 5 which r.f.'.'uner.tts the top and bottom. The frame 1, as will be seen in' the drawing, pivotally supports a handle 6 havin an enlarged circular o r curved head or hu 'iprovided with a square' opening 8 adapted'to receive the squared end 9 of the damper spindlelO, the

damper being indicated by 11.

To assisi in holding theta-ndi@ ein sa tion', .I provide .the head 7 thereof with a I Patented J an. 2, 1912.

tea-t or projection 12 which, when the handle g 6 is in position, passesthrough and oscil-I -lates in a slot 13, the said slot` being formed by the curved rail 14a-nd end members or stops 15 which connect the saidrail and upper end 3 of the frame 1.

As can be seen in Fig. 1, the rail 14 is curved to correspond with the curve of the gf head 7 of the handle 6 andis located suii ciently close to the said head to act as a f stopforthe teat 12, which acts to prevent g .the head of the handle from being lforced outwardly and Aaway from the t-op ofthe of the said rail 14.

- frame by contacting with the inner surface" The slot 2n in the lower end 2 permits* the handle tobe radially moved, whereby the damper 11 can be opened or closed or heldin a desired position by means of a thumbscrew 16 and nut 17 1`As the radius of theif: I curve 2a is equal to the distance between the center of the head 7 of handle 6, and the center of the thumb-screw 16, the said curve acts as a guide to keep the head of the handle in position 'at the top of the frame at 'all times, whether the said handle is applied to a damper-spindle, or before the device is ap lied to a duct.

It will e seen from Fig. 2 that. the lower end '2 is set off or of an angular formation,

whereby a space 18 is provided for the nut 17; the oifsetting of said lower end making it possible to take 'thc nut 17 from the screw 16,-so that the screw may be removed when the frame is riveted .or otherwise secured to lthe duct A.

It will be seen that the only pointat which the frame is secured to a duct or other structure is at the head 3,-; hence the said frame can be secured to a circular as well as to a square duct, the bar 5 bei fr rigid enough` to support the segmental en' 2, even though the saidend should hang free from a support other than that to which the head 3 is secured.

It will be seen in Fig. 4 that t-he upper end of the frame 1 is provided with an opening 10a through which the end of the 'damper spindle 10 is passed.

From the-.foregoing description and the accompanying drawing it will he apparent that I have produced a simple and inexpensive frame and handle for operating dampers, my device `'being of such .construclos tion that it can be applied as acomplete or assembled structure to ducts or theflike of any formation, besides which I have obvi' ated the use of nuts, pins or the like to hold the handle in position, and furthermore, my handle is less likely, by reason of my improved construction, to become detached from the device, not to speak of the saving caused by dispensing with the use of nuts, pins or the like tov hold the handlev in position.

Having now described my invent-ion, what I claim and desire to secure by Letters Patent is: 5

1. A frame adapted for attachment to a duct or the like, the lower end of said frame being curved, said curved. end being provided with a slot, a handle having an opening adapted to receive the end of a damper-spindle, a projection located at the upper end of said handle,l the upper end of said frame being provided 'witli a slot ada-pted to receive the projection on said'handle, and a thumb-screw carried by said handle and adapted to travel in t-he slotin the curved lower end of said frame.-

2. A frame adapted for attachment to a duct or the like, comprising a head provided with an opening, an offset lower end having a slot, and a bar connect-ing said head and said offset lower end, a handle having an opening adapted to receive the end of a damper-spindle, a projection located at the upper end of said handle, a rail carried by the upper end of said frame, said rail being positioned away from the face of said frame, whereby a slot,.adapted to receive the pro.- jection on said handle, is provided, and a thnxnb-screw carried by said handle adapted to travel in the slot in the curved lower end of said frame. v

8. A frame comprisingl a head provided with an opening, the lower end of the frame having a curved slot, a handle having an opening in alinement with the opening in said head, a curved rail at the; upper end of saidframe, said rail being positioned away from the face of the frame so as to form a. slot therebetween, and a teat on the head of said handle entering said slot, together with means for holding the handle in desired position along said slot in the lower end of the frame.

Signed at New York city, N. Y. this 21st day of August, 1911.

HEYMAN RosENBERG.

. Witnesses:

Ro'r. RosnNBERo, ESTELLE O. HAMBURGER. 

